Where: Middlesex County, Connecticut (41.4° N, 72.7° W: paleocoordinates 22.1° N, 19.5° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Shuttle Meadow Formation (Meriden Group), Hettangian (201.3 - 199.3 Ma)
• Durham fish bed
• bed-level stratigraphic resolution
Environment/lithology: lacustrine - small; lithified, gray siltstone
Size class: macrofossils
Preservation: adpression
Collected by S. W. Loper in 1878
Collection methods: surface (in situ),
Primary reference: B. Schaeffer, D. H. Dunkle, and N. G. McDonald. 1975. Ptycholepis marshi Newberry, a chondrostean fish from the Newark Group of eastern North America. Fieldiana Geology 33(12):205-233 [M. Uhen/M. Shalap/M. Carrano]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 224079: authorized by Matthew Carrano, entered by Matthew Carrano on 13.01.2022
Creative Commons license: CC BY (attribution)
Taxonomic list
| Osteichthyes | |
"Ptycholepis marshi n. sp." = Ptycholepis marshii
"Ptycholepis marshi n. sp." = Ptycholepis marshii Newberry 1878 ray-finned fish AMNH 575, 669; MCZ 6254; WU 907, 865
| |
"Catopterus minor n. sp." = Redfieldius minor, "Catopterus redfieldi n. sp." = Redfieldius redfieldi, "Catopterus ornatus n. sp." = Redfieldius ornatus, Redfieldius gracilis
"Catopterus redfieldi n. sp." = Redfieldius redfieldi Egerton 1847 | |
| Actinopteri | |
|
Semionotus sp. Agassiz 1832 | |
| Coelacanthimorpha | |
|
Diplurus longicaudatus Newberry 1878 coelacanth | |